The passenger would like to have an arm rest............[/b]

Agreed, the Passenger side should get an arm rest. In addition, it would be more useful for me (the driver) to have the arm rest 1" higher. I become cramped and fatigued when leaning to place my arm on the arm rest... I do not know what the height of the arm rest was calculated for, but mine is short, is it possible to make an adjustable arm rest?
Thank You for your time,

I surely agree. I made one so that it would be wide, high and long enough so that both me and my passenger can use it. Then I put 2 cup holders in it that would hold anything from a small styrofoam cup to my giant coffee mug.

So I vote for them to invent a decent arm rest for our next version.